I suppose that’s really a matter of opinion these days. IF you can at all get a length of CAT5 cable to the WDTVLIVE that is going to bring you the best speed you can get. Do it if you can. Try to avoid wireless and the Power Plug adapters. (those things that plug into your electrical outlets to utilize your home wiring for network use) Power Plug adapters don’t like jumping from circuit to circuit nor do the tend to like ground fault/arc fault protection.
If you simply can’t avoid wireless make sure you read over the list of approved USB adapters for the Live you have. It should be an EXACT match to what is in the list right down to the Firmware revision numbers in the adapter you buy.
Wireless N is about as fast as you’re going to go wifi unless they have approved an adapter for the new wireless AC.
Good luck with which ever way you go!
